US3400402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire antenna extensible along calibrated support means
Assignee: Collins Radio Co
•
Filing: 1965-03-12
•
Granted: 1968-09-03
•
Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Donald C Gallagher
- 👤 Lester W Haerther
- 👤 John A Middleton
- 👤 Edward G Tuthill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:06
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |